javascript return value is always undefined

Question

I\'m trying to retrieve the 2 attributes of seprated function and I debug there values before the end of the function and they have a value but the return value is alwas und

Answer 1

Cause you're not returning it from the main function, you're returning it from the embedded anonymous function which isn't doing anything with it. Do this:

function STAAPlanlat(){
var lat;
var lan;
alert ("the function");
if (navigator.geolocation) {
    //we supposed to call the handlers of the expections 
    navigator.geolocation.watchPosition(function(position) {
        alert("show position ");
        //  x.innerHTML="Latitude: " + position.coords.latitude +"
Longitude: " + position.coords.longitude;   
        lat=position.coords.latitude;
        lan=position.coords.longitude;  

        //x.innnerHTML=out
        alert(lat+"<"+lan);
    });
    return lan;
}
else
    alert("error");
}